In order to get people familiar with the Stasis message bus, it would be useful to have something of a tutorial. Since I'm not clever enough to think of some cool integration we could do with Twitter, I settled for something that might actually be useful. This patch adds a res_statsd.so module, which implements a basic statsd[1] client. Statsd is a very simple statistics gathering server, which can publish its results to a backend graphing engine, like Graphite[2]. There are several different Statsd server implementations[3], so you can pick what works best for your environment. The actual example of how to use the Stasis message bus is in res_chan_stats.so. This module demonstrates how to use subscriptions and the message router by monitoring messages and posting channels stats to the statsd server. A wiki page walking through res_chan_stats.so is forthcoming. [1]: https://github.com/etsy/statsd/ [2]: http://graphite.readthedocs.org/en/latest/ [3]: http://joemiller.me/2011/09/21/list-of-statsd-server-implementations/ Review: https://reviewboard.asterisk.org/r/2460/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@386624 65c4cc65-6c06-0410-ace0-fbb531ad65f3
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/*
|
|
* Asterisk -- An open source telephony toolkit.
|
|
*
|
|
* Copyright (C) 2013, Digium, Inc.
|
|
*
|
|
* David M. Lee, II <dlee@digium.com>
|
|
*
|
|
* See http://www.asterisk.org for more information about
|
|
* the Asterisk project. Please do not directly contact
|
|
* any of the maintainers of this project for assistance;
|
|
* the project provides a web site, mailing lists and IRC
|
|
* channels for your use.
|
|
*
|
|
* This program is free software, distributed under the terms of
|
|
* the GNU General Public License Version 2. See the LICENSE file
|
|
* at the top of the source tree.
|
|
*/
|
|
|
|
#ifndef _ASTERISK_STATSD_H
|
|
#define _ASTERISK_STATSD_H
|
|
|
|
/*!
|
|
* \brief Support for publishing to a statsd server.
|
|
*
|
|
* \author David M. Lee, II <dlee@digium.com>
|
|
* \since 12
|
|
*/
|
|
|
|
#include "asterisk/optional_api.h"
|
|
|
|
/*! An instantaneous measurement of a value. */
|
|
#define AST_STATSD_GUAGE "g"
|
|
/*! A change in a value. */
|
|
#define AST_STATSD_COUNTER "c"
|
|
/*! Measure of milliseconds. */
|
|
#define AST_STATSD_TIMER "ms"
|
|
/*! Distribution of values over time. */
|
|
#define AST_STATSD_HISTOGRAM "h"
|
|
/*! Events over time. Sorta like increment-only counters. */
|
|
#define AST_STATSD_METER "m"
|
|
|
|
/*!
|
|
* \brief Send a stat to the configured statsd server.
|
|
*
|
|
* The is the most flexible function for sending a message to the statsd server,
|
|
* but also the least easy to use. See ast_statsd_log() or
|
|
* ast_statsd_log_sample() for a slightly more convenient interface.
|
|
*
|
|
* \param metric_name String (UTF-8) name of the metric.
|
|
* \param type_str Type of metric to send.
|
|
* \param value Value to send.
|
|
* \param sample_rate Percentage of samples to send.
|
|
* \since 12
|
|
*/
|
|
AST_OPTIONAL_API(void, ast_statsd_log_full, (const char *metric_name,
|
|
const char *metric_type, intmax_t value, double sample_rate), {});
|
|
|
|
/*!
|
|
* \brief Send a stat to the configured statsd server.
|
|
* \param metric_name String (UTF-8) name of the metric.
|
|
* \param metric_type Type of metric to send.
|
|
* \param value Value to send.
|
|
* \since 12
|
|
*/
|
|
AST_OPTIONAL_API(void, ast_statsd_log, (const char *metric_name,
|
|
const char *metric_type, intmax_t value), {});
|
|
|
|
/*!
|
|
* \brief Send a random sampling of a stat to the configured statsd server.
|
|
*
|
|
* The type of sampled metrics is always \ref AST_STATSD_COUNTER. The given
|
|
* \a sample_rate should be a percentage between 0.0 and 1.0. If it's <= 0.0,
|
|
* then no samples will be sent. If it's >= 1.0, then all samples will be sent.
|
|
*
|
|
* \param metric_name String (UTF-8) name of the metric.
|
|
* \param value Value to send.
|
|
* \param sample_rate Percentage of samples to send.
|
|
* \since 12
|
|
*/
|
|
AST_OPTIONAL_API(void, ast_statsd_log_sample, (const char *metric_name,
|
|
intmax_t value, double sample_rate), {});
|
|
|
|
|
|
#endif /* _ASTERISK_STATSD_H */
|
|
|